Home / 17,047.32-23,555.81-13,280.21

Finding the Fourth Proportional to 17,047.32, 23,555.81 and 13,280.21

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Solution

The fourth proportional to 17,047.32, 23,555.81 and 13,280.21 is: 18,350.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,047.32 : 23,555.81 = 13,280.21 : x
  2. Step 2: Convert to fraction form
    17,047.32/23,555.81 = 13,280.21/x
  3. Step 3: Cross multiply
    17,047.32x = 23,555.81 × 13,280.21
  4. Step 4: Simplify right side
    17,047.32x = 312,826,195.61
  5. Step 5: Solve for x
    x = 312,826,195.61/17,047.32
  6. Step 6: Final answer
    x = 18,350.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.